Now Showing: 'The Switch'

(CNN) - One of our favorite "Friends" and the new Mary Poppins are back on the big screen this weekend.

Jennifer Aniston plays Kassie Larson in "The Switch." She's a 40-year-old woman who isn't going to wait for a husband to start a family. But when her best friend Wally, played by Jason Bateman, tampers with her sample, Kassie's road to motherhood may have taken an unexpected turn. Severn years later, the friends are reunited and Wally notices some undeniable similarities between himself and Kassie's son.

"The Switch" is rated PG-13.

In "Lottery Ticket," a holiday weekend and some greedy neighbors stand in the way of Kevin Carson cashing in on his $370 million winnings. Bow Wow stars in this rags-to-riches comedy that proves sometimes there's more to life than what's in your bank account.

"Lottery Ticket" is rated PG-13.

Emmy Thompson brings her beloved character back to the big screen in "Nanny McPhee Returns." This time she's arrived just in time to help overwhelmed mom Maggie Gyllenhaal.

"Nanny McPhee Returns" is rated PG.